I don't know which model you have. I have the 767 Brute and will use that for reference. I believe they are the same. Pop the 3 screws off at the head. It's best if you have the motor in the vertical position. Before removing the top half , pay attention to the direction the arrow is pointing. Then proceed to take this piece off. Don't disturb the orientation of the lower trolling motor unit. Replace the bulb and reassemble. Piece of cake. Job takes all of 5 minutes (assuming you have light bulb).